"South Pacific," both the musical and its film adaptation, was controversial primarily due to its themes of race and colonialism. It addressed issues of racial prejudice and interracial relationships, particularly through the character Nellie Forbush, who struggles with her feelings for a Polynesian man, Emile de Becque. The musical's portrayal of these themes challenged social norms of the time, especially in the 1940s and 1950s, leading to protests and censorship in some areas. The candid exploration of racism and cultural differences sparked debates about social issues that remain relevant today.

"South Pacific," the film adaptation of the Broadway musical, was primarily filmed on the island of Kauai in Hawaii. The lush landscapes and beautiful beaches of Kauai provided the perfect backdrop for the story's setting in the South Pacific during World War II. Specific locations included the famous Na Pali Coast and the Allerton Garden in Lawai Valley, showcasing the island's stunning natural beauty that enhances the film's romantic and adventurous elements.

"South Pacific" is primarily based on James A. Michener's 1947 book "Tales of the South Pacific," which is a collection of interconnected stories inspired by Michener's experiences as a naval officer during World War II in the South Pacific. While the characters and specific plotlines are fictional, they draw on real events, cultural themes, and the experiences of individuals from that era. The musical adaptation, created by Rodgers and Hammerstein, retains these elements while exploring issues of love and racial prejudice.

In the movie "South Pacific," the singing was primarily performed by the lead actors. The vocals for the character Nellie Forbush were sung by Mitzi Gaynor, while the character Emile de Becque's songs were performed by Rossano Brazzi, though some of his singing was dubbed by the renowned baritone, Giorgio Tozzi. The film features musical numbers composed by Richard Rodgers and Oscar Hammerstein II, showcasing a mix of the actors' performances and professional vocalists to enhance the musical experience.